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中文摘要：
低空气渗透是发生在完成的涂层身上的一个普通问题，颜料染 fabrics.To 处理这个问题，苯乙烯和丁基 acrylate 共聚物乳胶被准备并且为 binder.Then 用作代用品， polyvinylpyrrolidoue ( PVP )被喂进 latex.It 被期望毛孔能在是乳胶电影的 rinsed.The 形态学以后在产生乳胶电影形成，这是由扫描 .It 被发现的电的显微镜( SEM )的 analysized 乳胶的连续性拍摄减少的 greatl
英文摘要：
Low air permeability is a common problem happening to the coating finished and pigment dyed fabrics.To tackle the problem,styrene and butyl acrylate copolymer latex was prepared and used as substitute for the binder.Then,polyvinylpyrrolidone（PVP）was fed into the latex.It was expected that pores could form in the resulting latex film after being rinsed.The morphologies of the latex films were analysized by scanning electric microscope（SEM）.It was found that the continuity of the latex films decreased greatly because of the addition of PVP,leading to the loss of the stress at break of the films.After rinsing with methanol aqueous solution,PVP was easily leached off and（macro）void was formed in the latex films.The size of the void decreased with the increase of the PVP concentration.Then,the latex with and without PVP was used to finish the cotton fabrics and engaged as binder in pigment dyeing.After PVP was rinsed out,the air permeability of the fabrics improved greatly,which recovered to that of the unfinished one.In the meantime,the color fastness to rubbing was little affected.So,the method of PVP addition could be termed as an efficient way to improve the air permeability in coating and dyeing industry.
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